2251216651323 has 32 divisors (see below), whose sum is σ = 3175579330560. Its totient is φ = 1416673463040.

The previous prime is 2251216651303. The next prime is 2251216651331. The reversal of 2251216651323 is 3231566121522.

It is not a de Polignac number, because 2251216651323 - 2¹⁴ = 2251216634939 is a prime.

It is a super-2 number, since 2×2251216651323² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2251216651303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 567115 + ... + 2196372.

It is an arithmetic number, because the mean of its divisors is an integer number (99236854080).

Almost surely, 2^{2251216651323} is an apocalyptic number.

2251216651323 is a deficient number, since it is larger than the sum of its proper divisors (924362679237).

2251216651323 is a wasteful number, since it uses less digits than its factorization.

2251216651323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763747.

The product of its digits is 129600, while the sum is 39.

The spelling of 2251216651323 in words is "two trillion, two hundred fifty-one billion, two hundred sixteen million, six hundred fifty-one thousand, three hundred twenty-three".